Water-spray nozzle.



A. W. FISCHER.

WATER SPRAY NOZZLE.

APPLICATION FILED APR.2,1914.

Patented Nov. 24, 1914.

$ INVENTOR BY j ATfORNEY WITNESSES mfim U SjuTED- STA ES PATENT OFFICE. I

ADALBERT v; nscimn. O'F PHILADELPHIA. PENNSYLVA IA. ASSIGNOR T SCHUT'DE' & KQERT'IN COMPANY, OF PHILADELPHIA, PENNSYLVANIA; A CORPORATIONDF PENNSYLVANIA.

WATERSPRAY NOZZLE.

Spccification of Lette'fs Patent,

Application flied A r nz. 1914; Serial N0.:829.000.

a (zitizcn'of tho (iorn'nu'ilimpiztc. rosiding:

My present invention consists in an .im

' rorcd spray nozzle primarily. der 1 for" gut not necessarily restricted to use in cooling a liquid by spraying it into the atlnospherc. The improved nozzle was xhw i-d \'ation-of a portion .rn 1plo .'v( l in l"ig. 3. with the especial object in View of mroirs 'ing the practical oflic cncy and expand it A, i-iqprvsuuts n structuro su chj :15 is mun- 2 cost of vmanufnctnrc.

The gonorgil method of Cooling}:- liquid ordinarily "requires; in prai'tiru tln lt -thi-.-' liquid-to be cooled should ho. (hsxrlizirgwl into.

(lulivorod and a:s1n-r('mn(ling annular outlet from which vliqind s-(hsclxii -god in the form of a. hollow- 0011163151011, ;lil(l I so construct fisg iand 1159f this compound nozzle that the inner s-jot isfconical in form and substantially con;

forms in shape to, and nests in the hollow conical jot dischargod from Silld annular outlet. The inner may-ho formed by 49 the liquid to be cooled in which case the (expose- 1 jet surfaru zips-1i \iilllm substantizilly groiitor than if this same. amount of liquid were discharged in :r singlo jot; r thoinncr jot may be. of air. in which came tho inner surface of tho ouivr liquid jet is and there is no possibility for the onto;- hollow liqni (l jet to 'lJif-CGIHC filled with n more or loss" stagnant mixture of air and 50 vapor at a tomporaturo approximating that of the liquid discharged.

The Vnl'iOHS fv z turos of norolty which 'charactcrizo my invention are pointed out with pai' ticularity in thr. claims annexed to and forming it part of this specification.

- the, circulating \ijntr-r'fnfs -i-rlzurr.(-ornh-navrs m tlio lIlCG. Th s strmztui top and has ro tu'nl suit" \vulls'anglfn hotstructure. ad'j-z ci nti lgliyg ,wnt transfer-[of heat fi-oin 'thq liquid the. hotly of tho l'noinhcr l eonroltly izoiiirnlhotly .slnin'n. :is internally 'tlu'ruglril at E for izittu'clilnoi'it to tho supporti'nglitting l). .Tthin.thoonlrr}. ellis locnthl a tubular limb F (mnl-n'isiug-zi conical portion a l 'un(l--:\ lindi icul portion.

' l lmuling froin the smaller (.ml of the conirz'rl p'-rtion. 'l'lur imnhoi l shown :is-in turnuli) thrmiloil at its "larger l\(l -:i lllill :9 (atoll at l for utiinrliniunt, in tho |l:llli(,2llit-ifconstruction ill-tisztratuhto it (-(n'rvspomling supply pips (l'. which [NU-$44)}; through tho fitting D to whirh thi-v outer shell of tho nozzlo. l) is nllixul. In the larger end of tho (l0 ofiiciently subjected to Contact with the. air,

annular space a liotwoun tho non/[o l) zinil are. located spiralhhidcs or vanes V which are shown as formed integrally with tho nicuihc-r l". In tho conical portion of the pusszigo f 10 through tho n'uwnhur F are mounted i1 sm-ios of spiral vanrs or hhuh-s F in operation the water to he cooled passes to the passage e of each nozzle. E, through the pipe D and the space within the correi spending fitting D surrounding the pipe G, and passes to the passage f through the pipes G and G. The water passing through each passage .6 is given a spiral movement by the vanes F and has its velocity increased in passing through the converging outer portion of the passage e and is discharged at the outlet E? therefrom, with such tan gential and axial velocity components as to form a, hollow conical jet of finely subdivided particles. The water passing through the passage f is given a spiralmm ement and has its velocity increased as it' vtravels through this passage and is discharged in the form of'a conical jet conforming generally to the form of the surrounding jet issuing through the orifice E. 'I have found that it is essential for the best results that the two jets be definitely separated and spaced apart adjacent their apices. For this reason I have the discharge end of the member F extending a short distance out of the discharge end of the outer surrounding'shell, and I find it highly desirable also to have the projecting portion of'the member F surrounded adjacent its end by a circumferential rib F which aids in separating the two jets adjacent their apices, so that neither of theseijets will interfere" with the proper formation of the other jet.

The apparatus shown in the drawings may be used without any appreciablechange where the fluid passing through the passage f is air and not water. This may be accomplishe'd with the apparatus shown in the drawings, for instance by simply disconnecting the pipes 'G and G, in which case atmospheric air will be drawnthrough the pipe and passage 7 by the aspirating effect of the outer water jet, or air under a slight pressure may be supplied to the pipe (1? through a supplypipe taking the place of the pipe G in the construction shown.

" henairisthns supplied to the interior of the hollow conical water jet discharged through the orifices E, the airexerts a substantial cooling effect on the inner surface of'said hollow jet and" prevents the accumulation in the latter of a more or less stagnant' mixture of air and vapor at a temperature approximating that of the liquid discharged. Such an accumulation if permitted has the eifect of confining the cooling efiect of the air on the jet mainly to the outer surface of the jet.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is: I

1. A spray nozzle formed with a central passage terminating at one end in a discharge orifice, and with a surrounding passage terminating at one end in an annular discharge orifice surrounding sa d central passage and adjacent but slightly back of the discharge orifice of the central passage,

and also formed with a rib projecting outwardly from the wall surrounding 'said cenand separated therefrom by an annular space which forms a fluid passage terminatmg in an annular discharge orifice adjacent the discharge orifice of said central tubular part, one set of spiral vanes located within he first mentioned part, and a second set of spiral vanes located in the annular space between said tubular parts, each set tending togive a whirling action to ,the fluid passing through the corresponding passage, said cen-- tral tubular part proj ectingslightly in front of the discharge orifice from said annular space and being formed with an external circumferential rib separating the jets-ad jacent the orifices from Which they are discharged. I

ADALBERT W. FISCHER. \Vitnesses: I

Trionas W.'Mr;srrrr, SIMON W. SNYDER, 

